at least in the WP 8.1 emulator. This is similar to IE11’s user agent on the desktop.

Like desktop IE11 the browser also comes with WebGL support, which should allow for pretty high performance web apps and games in the future.

The browser will also have one interesting UI change.

The Tab button has been retired, and to switch open tabs you now need to use the multitasking control.

There are also other interesting improvements:

Most interesting is that you are now finally able to download files such as MP3 or Docx files, and actually save them to local storage. Combined with a file picker that exposes the file system, this means you now have very similar freedom to a desktop system.

Of note for privacy pre-occupied, the phone will let you reset you (presumably unique) ad idea, which means you can start over in the eyes of advertisers after visiting those recreational sites.